NGK Standard Spark Plug Box of 4 (BCPR7ET) 1976-chevrolet-corvette-esi5693495 N021X is an ACT Xtreme

N021X is an ACT Xtreme pressure plate that uses exclusive diaphragm design to increase clamp load

It also provides secure mounting for up to two Turbosmart manual boost controllers

Enter the Mishimoto 2010-15 Camaro SS L99 direct-fit catch can kit

brass and aluminum

Without a doubt the strongest

NGK Standard Spark Plug Box of 4 (BCPR7ET) 1976-chevrolet-corvette-esi5693495 N021X is an ACT XtremeNGK Standard spark plugs (in the iconic NGK 'yellow box' packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas